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Quantitative EEG and Functional Outcome Following Acute Ischemic Stroke

2018Journal article Open access
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dc.contributor.authorBentes, C
dc.contributor.authorPeralta, AR
dc.contributor.authorViana, P
dc.contributor.authorMartins, H
dc.contributor.authorMorgado, C
dc.contributor.authorCasimiro, C
dc.contributor.authorFranco, AC
dc.contributor.authorFonseca, AC
dc.contributor.authorGeraldes, R
dc.contributor.authorCanhão, P
dc.contributor.authorPinho e Melo, T
dc.contributor.authorPaiva, T
dc.contributor.authorFerro, JM
dc.date.accessioned2020-12-15T16:19:47Z
dc.date.available2020-12-15T16:19:47Z
dc.date.issued2018
dc.description.abstractObjective: To identify the most accurate quantitative electroencephalographic (qEEG) predictor(s) of unfavorable post-ischemic stroke outcome, and its discriminative capacity compared to already known demographic, clinical and imaging prognostic markers. Methods: Prospective cohort of 151 consecutive anterior circulation ischemic stroke patients followed for 12 months. EEG was recorded within 72 h and at discharge or 7 days post-stroke. QEEG (global band power, symmetry, affected/unaffected hemisphere and time changes) indices were calculated from mean Fast Fourier Transform and analyzed as predictors of unfavorable outcome (mRS ≥ 3), at discharge and 12 months poststroke, before and after adjustment for age, admission NIHSS and ASPECTS. Results: Higher delta, lower alpha and beta relative powers (RP) predicted outcome. Indices with higher discriminative capacity were delta-theta to alpha-beta ratio (DTABR) and alpha RP. Outcome models including either of these and other clinical/imaging stroke outcome predictors were superior to models without qEEG data. In models with qEEG indices, infarct size was not a significant outcome predictor. Conclusions: DTAABR and alpha RP are the best qEEG indices and superior to ASPECTS in post-stroke outcome prediction. They improve the discriminative capacity of already known clinical and imaging stroke outcome predictors, both at discharge and 12 months after stroke. Significance: qEEG indices are independent predictors of stroke outcome.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationClin Neurophysiol. 2018 Aug;129(8):1680-1687.pt_PT
dc.identifier.doi10.1016/j.clinph.2018.05.021pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.17/3535
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.subjectAgedpt_PT
dc.subjectBrain Ischemiapt_PT
dc.subjectBrain Wavespt_PT
dc.subjectCohort Studiespt_PT
dc.subjectElectroencephalographypt_PT
dc.subjectFemalept_PT
dc.subjectHumanspt_PT
dc.subjectLongitudinal Studiespt_PT
dc.subjectMalept_PT
dc.subjectMiddle Agedpt_PT
dc.subjectProspective Studiespt_PT
dc.subjectRecovery of Functionpt_PT
dc.subjectStrokept_PT
dc.subjectTreatment Outcomept_PT
dc.subjectHSJ MEDpt_PT
dc.titleQuantitative EEG and Functional Outcome Following Acute Ischemic Strokept_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage1687pt_PT
oaire.citation.issue8pt_PT
oaire.citation.startPage1680pt_PT
oaire.citation.titleClinical Neurophysiologypt_PT
oaire.citation.volume129pt_PT
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT

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